couldn't find the kernel version the module was compiled for
 

I downloaded vs 1.65 of the ov511 webcam driver from alpha.dyndns.org/ov511/download.html

It compiles fine but attempting to insmod it results in the error:

ov511.o: couldn't find the kernel version the module was compiled for

I need to compile it because the ov511 included in the kernel does not include the ov511_decomp.o and
ov518_decomp.o I need for my camera.

Ideas?

From the makefile:

INCLUDEDIR = /lib/modules/`uname -r`/build/include

CFLAGS = -D__KERNEL__ -DMODULE -DOUTSIDE_KERNEL -O2 -Wall -Wstrict-prototypes \
-fomit-frame-pointer -I$(INCLUDEDIR)